Measuring range     

30~130dBA、35~130dBC     

Accuracy     

± 1.5 dB (under reference conditions)     

Frequency range     

31.5Hz~8KHz     

Level range     

30~80,50~100,60~110,80~130, 30~130dB     

Frequency weighting     

A / C     

Digital Display     

4digits     

Resolution     

0.1dB     

Sample rate     

2 times/second     

Bar graph     

Display for 0~30dB: one scale unit denotes 2 dB        
Forother levels: one scale unit denotes 1 dB

Over indication     

OVER / UNDER     

AC output     

0.707Vrms at FS output impedance     
approx. 600 ohm

DC output     

10mV/dB, output impendance approx. 100ohm     

Time weight     

FAST / SLOW     

Microphone     

1/2 inch electret condenser microphone     

Max     

MAX     

Power supply     

9V battery     

Power life     

About 30 hours (alkaline battery)     

Self calibration time     

3s     

Operating condition     

0~40℃，10~80%RH     

Storage condition     

-10~60℃，10~70%RH     

Weight     

230g (including battery)     

Dimension     

207*70*29mm